Yingyi Bu has posted comments on this change.
Change subject: Ensure Metadata locks are acquired for SqlPP queries
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Patch Set 2:
In fact, for correctness, we have to do it in the right way.
The following queries are valid queries that you can run from the Web UI:
Q1: Metadata.`Dataset`;
Q2: array_count(Metadata.`Dataset`);
There are many fronts that can be a "dataset"... Therefore, we have to acquire locks upon
recognizing datasets and dataverses.
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Gerrit-Change-Id: I5f468599897a37cbcb12d8577d072f340f0d949c
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